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Analysis
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max time kernel
148s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
03/08/2023, 18:17
Behavioral task
behavioral1
Sample
5484d36faef27e1bf2ab3f65c1e1fa57_cryptolocker_JC.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
5484d36faef27e1bf2ab3f65c1e1fa57_cryptolocker_JC.exe
Resource
win10v2004-20230703-en
General
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Target
5484d36faef27e1bf2ab3f65c1e1fa57_cryptolocker_JC.exe
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Size
118KB
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MD5
5484d36faef27e1bf2ab3f65c1e1fa57
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SHA1
ca2b88bd36e490e4d10245ac79bccc289d516de5
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SHA256
31e67c23475f0e5a19c081db1023894d9348af14a2ded11ea53ad70649e088a4
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SHA512
84bb7f569102ac062126578a248c280868b2f7d5066fbade13666f3ceaf9bda1daf07737106bb6765e4c93122b8a970f138e8adbc7a3e40384716c6c76ad1027
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp699G/TG4dYU:AnBdOOtEvwDpj6zG
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2884 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2536 5484d36faef27e1bf2ab3f65c1e1fa57_cryptolocker_JC.exe -
resource yara_rule behavioral1/memory/2536-53-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/files/0x0009000000012024-68.dat upx behavioral1/memory/2536-67-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/files/0x0009000000012024-64.dat upx behavioral1/memory/2884-71-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/files/0x0009000000012024-79.dat upx behavioral1/memory/2884-81-0x0000000000500000-0x000000000050F000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2536 wrote to memory of 2884 2536 5484d36faef27e1bf2ab3f65c1e1fa57_cryptolocker_JC.exe 28 PID 2536 wrote to memory of 2884 2536 5484d36faef27e1bf2ab3f65c1e1fa57_cryptolocker_JC.exe 28 PID 2536 wrote to memory of 2884 2536 5484d36faef27e1bf2ab3f65c1e1fa57_cryptolocker_JC.exe 28 PID 2536 wrote to memory of 2884 2536 5484d36faef27e1bf2ab3f65c1e1fa57_cryptolocker_JC.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\5484d36faef27e1bf2ab3f65c1e1fa57_cryptolocker_JC.exe"C:\Users\Admin\AppData\Local\Temp\5484d36faef27e1bf2ab3f65c1e1fa57_cryptolocker_JC.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2536 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2884
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
118KB
MD520c907e182f9685fbac49567927941c2
SHA1bc36b34308de3a778c6cf2e9e60ca718f57ae924
SHA256088ed9498e153fb9d9265a391517f94954c30f6a127468c7dc81d42d58c00fee
SHA512a27c33845f5881dd999417e75751c0e643d8c460f4959b10fc36396846cd8578a46a09f60ba8724ce70113efd97d44d2cb268040e52f9d37d9a1c6122e1f4c08
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Filesize
118KB
MD520c907e182f9685fbac49567927941c2
SHA1bc36b34308de3a778c6cf2e9e60ca718f57ae924
SHA256088ed9498e153fb9d9265a391517f94954c30f6a127468c7dc81d42d58c00fee
SHA512a27c33845f5881dd999417e75751c0e643d8c460f4959b10fc36396846cd8578a46a09f60ba8724ce70113efd97d44d2cb268040e52f9d37d9a1c6122e1f4c08
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Filesize
118KB
MD520c907e182f9685fbac49567927941c2
SHA1bc36b34308de3a778c6cf2e9e60ca718f57ae924
SHA256088ed9498e153fb9d9265a391517f94954c30f6a127468c7dc81d42d58c00fee
SHA512a27c33845f5881dd999417e75751c0e643d8c460f4959b10fc36396846cd8578a46a09f60ba8724ce70113efd97d44d2cb268040e52f9d37d9a1c6122e1f4c08